Cisco Systems Cisco CRS-1 Manual De Usuario
2-23
Cisco CRS-1 Carrier Routing System 4-Slot Line Card Chassis Installation Guide
OL-10971-07
Chapter 2 Installing and Removing Power Components
Removing an AC Power Shelf
Required Tools and Equipment
You need the following tools and parts to perform this task:
•
ESD-preventive wrist strap
•
Medium flat-blade screwdriver
•
AC Power shelf (Cisco product number: CRS-4-AC-SHELF)
Steps
To install an AC power shelf, use
as a reference and follow these steps:
Step 1
Attach the ESD-preventive wrist strap to your wrist and connect its leash to one of the ESD connection
sockets on the front (SFC) side of the chassis or a bare metal surface on the chassis.
sockets on the front (SFC) side of the chassis or a bare metal surface on the chassis.
Step 2
Remove the air intake grille from the bottom of the chassis.
Step 3
Holding the AC power shelf underneath with one hand and steadying it with the other, lift the shelf up
and slide it partway into the power shelf slot on the front (PLIM) side of the chassis. Be sure to center
the shelf in the slot when you slide it in.
and slide it partway into the power shelf slot on the front (PLIM) side of the chassis. Be sure to center
the shelf in the slot when you slide it in.
Caution
An empty AC power shelf weighs approximately 7.0 lb (3.2 kg). To prevent injury when
lifting the shelf, keep your back straight and lift with your legs, not your back. Avoid sudden
twists or lateral moves.
lifting the shelf, keep your back straight and lift with your legs, not your back. Avoid sudden
twists or lateral moves.
Step 4
Slide the AC power shelf fully into the chassis. Be sure that the lever handles are aligned with the lever
handle catches on the chassis casing.
handle catches on the chassis casing.
Step 5
Lift the lever handles up to lock the tray into position.
Step 6
Use the flat-blade screwdriver to turn the two captive screws that connect the rear of the chassis to the
power shelf, and tighten them fully.
power shelf, and tighten them fully.
Caution
Be sure to attach the plugs carefully; incorrectly attached plugs can damage the chassis.
What to Do Next
After performing this task, install the power supplies (see the
), and replace any chassis cosmetic cover plates.
Removing an AC Power Shelf
This section describes how to remove an AC power shelf from the Cisco CRS-1 4-slot line card chassis.
The AC power shelf encloses four power supplies and the power distribution connections and wiring.
The AC power shelf is installed in the front (PLIM) side of the chassis. For more details on the power
The AC power shelf encloses four power supplies and the power distribution connections and wiring.
The AC power shelf is installed in the front (PLIM) side of the chassis. For more details on the power